The Nature of Air Flow About the Tail of an Airplane in a Spin (1932)
NASA Technical Reports Server (NTRS) · leaf 9
N.A.C.A. Technical Note No.421 Pigs.6.7,8 A Pig.7 Plow pattern for left spin Pig,6 Plow pattern for right spin and generator at third position. and generator at third position. … (c) (ci) Pig.9 Plow patterns for entry into left spin with generator at second position.
NASA Technical Reports Server (NTRS)
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